9-4 SERVICING INFORMATION
ENGINE
ENGINE WILL NOT START OR IS HARD TO START
Symptom, possible causes and remedy
1) Compression too low
• Valve clearance out of adjustment.
• Worn valve guides or poor seating of valves.
• Mistimed valves.
• Excessively worn piston rings.
• Worn-down cylinder bores.
• Starter motor cranks too slowly.
• Poor seating of spark plugs.
2) Plug not sparking
• Fouled spark plugs.
• Wet spark plugs.
• Defective ignition coils.
• Open or short in high-tension cord.
• Defective CKP sensor.
• Defective ECM.
• Open-circuited wiring connections.
3) No fuel reaching the intake manifold
• Clogged fuel filter or fuel hose.
• Defective fuel pump.
• Defective fuel pressure regulator.
• Defective fuel injector.
• Defective fuel pump relay.
• Defective ECM.
• Open-circuited wiring connections.
4) Incorrect fuel/air mixture
• TP sensor out of adjustment.
• Defective fuel pump.
• Defective fuel pressure regulator.
• Defective TP sensor.
• Defective CKP sensor.
• Defective IAP sensor.
• Defective ECM.
• Defective ECT sensor.
• Defective IAT sensor.
Adjust.
Repair or replace.
Adjust.
Replace.
Replace.
See electrical section.
Retighten.
Clean or replace.
Clean and dry.
Replace.
Replace.
Replace.
Replace.
Repair or replace.
Clean or replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Check and repair.
Adjust.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
Replace.
PartShark.com
877-999-5686
Содержание 2005 DL650K5
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